Information Systems

Using Info - Data and Information


Int 2 Level


♦ Definitions and exemplification of the following terms in the context of an information system: data, information. (p11)





Higher Level


♦ Explanations and descriptions of the following terms in the context of an information system, and the relationships between them: data (raw facts and figures), information (processed data with structure, organisation, context or meaning) knowledge (derived from information).
♦ Description and exemplification of metadata (data describing data).
♦ Categorisation of information in terms of its source (primary, secondary, internal, external), nature (formal, informal, quantitative, qualitative), level (strategic, tactical, operational), time (historic, present, future), frequency (continuous, hourly, daily, monthly, annually), use (planning, control, decision making), form (written, aural, visual) and type (detailed, sampled, aggregated).
♦ Identification and description of the characteristics which affect the quality of information, in terms of its: relevance (or appropriateness), accuracy, completeness, reliability (or objectivity), timing, level of detail (or conciseness), presentation and availability.
♦ Understanding of the relationship between the characteristics of information and its value, and of the distinction between its cost and value.